Photographic-plate holder.



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PHUTOGRAPHIC PLATE HULDEB.

. (Application filed Nov.v 13, 1899.) l( Mo Model.)

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UNITED STATES PATENT OFFICE.

ROBERT EDWIN REARDON, OF OTTAIVA, CANADA.

PHOTOGRAPHlC-PLATE HOLDER.

SPECIFICATION forming part of Letters Patent No. 660,394, dated October23, 1900.

Application filed November 13, 1899. Serial No. 736,844. (No model.)

To @ZZ whom t may concern.

Be it known that 1, ROBERT EDWIN REAR- DON, a subject of the Queen ofGreat Britain, and a resident of the city of Ottawa, in the county ofCarleton, in the Province of Ontario. in the Dominion of Canada, haveinvented certain new and'useful Improvements in Photographic-PlateHolders or Envelops; and I do hereby declare that the following is afull, clear, and exact description of the same.

My invention has for its object to provide an inexpensive and efficientholder or envelop for a single photographic plate or cut film, whichholder is made of a one-piece blank of paper or cardboard adapted to befolded across the middle transversely, the front half or portion havingan aperture for exposure of the plate in the camera and side margins tofold over the back. half portion, said back half having a stampeddepression to receive the plate, side margins folding inwardly On theblank to make a grooved join t, a reinforcing end'margin foldingoutwardly, and a cover sliding in said grooved joint, the inlet for saidcover provided with a tubular rubber cushion fitting into channels inthe blank and covered by a textile strip to retain the plate and closethe entrance when said cover is inserted to exclude light from thephotographic plate.

Figure l is a diagram of a blank as 'cut integral from a sheet ofcardboard or paper. Fig. 2 is a diagram showing the impressed portionfor receiving the photographic plate and a tubular cushion and by dottedlines the scored margins. Fig. 3 isa diagram showing the holder orenvelop in a more advanced state of completion and the tubular cushionand flexible strip to exclude light. Fig. et is a front view Or plan ofthe holder complete. Fig. 5 is a longitudinal section enlarged, thesliding cover partly withdrawn from the finished plate-holder orenvelop; and Fig. 6 is a transverse section of the same.

The blank is cnt integral from paper or cardboard and folded upon itselfat the middle transversely, A being the front half and B the back half.

2 is the aperture or Opening in the front half for exposure of thephotographic plate Or film C, and 3 is the sunken or depressed portionstamped in the back half to receive said photographic plate flush withthe marginal surface.

et is a cardboard or paper which slides between the halves A and B toclose the aperture 2 to protect the photographic plate before and afterexposure.

5 represents corresponding grooves impressed in the blank near both endsfrom the inside to coincide when the blank is folded, and in one of saidgrooves is cemented a rubber tube or cushion 6, covered by a dexiblestrip 7, of textile material, one edge cemented to the blankintermediately of the tube and the outer edge to exclude light from theplate, and said strip extends a sufficient distance over the stampeddepression 3 to hold therein the plate C when inserted.

The side margins of the back half of the blank have a scored strip d,Fig. 2, which folds inwardly upon the blank (see Fig. 3) to form aportion of the guide-grooves in which the cover a slides. The two halvesor portions A and B are folded together along the divisional scoredlines Z), and the over-extending margin d. of the front is turned overthe edge ofthe back and cemented to the back, as shown in Figs. 5 and 6,to make a tight joint and to complete the grooves in which the cover 4slides. The end edge of the back has a scored margin c, which foldsoutwardly upon the blank and is cemented thereto to reinforce Or stilfenthe edge at the entrance for the sliding` cover for durability andeffectiveness.

I claim as my invention- A photographic-plate holder consisting of aOne-piece envelop of material impervious to light, having a stampeddepression 3 to receive the photographic plate, said envelop having anOpening or entrance at one end provided with a scored reinforcing-marginc, a cardboard closure /tsliding in said opening and in guidegrooves inthe envelop, the envelop being provided with grooves 5 impressed thereinto coincide within said opening or entrance, a cushion G, cemented tothe envelop in one of said grooves, anda iiexible strip 7 Of textilematerial cemented along one edge to the envelop, so that the oppositeedge of said strip will loosely overlie said cushion, for exclusion oflight, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two witnesses.

ROBERT EDVIN REARDON.

Vitnesses:

HENRY GEIs'r, JOHN GEIs'I.

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